Tyrone and Akira, who are married, incurred and paid the following amounts of interest during 2017:

 Home acquisition debt interest......................$15,000

 Credit card interest...............................................5,000

 Home equity loan interest...................................6,500

 Investment interest expense............................10,000

With 2017 net investment income of $2,000, calculate the amount of their allowable deduction for investment interest expense and their total deduction for allowable interest. Home acquisition principal is less than $1,000,000, and the home equity loan principal is less than $100,000.